String fastener



FIG. 1 is a front elevational view of a string fastener showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view as seen from the left of FIG. 1;

FIG. 6 is a side elevational view as seen from the right of FIG. 1;

FIG. 7 is a perspective view of the string fastener and

FIG. 8 is a perspective view of the string fastener from the opposite side on a reduced scale.

The broken line showing of a string in FIG. 8 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a string fastener, as shown and described. 